/Engine/Source/Editor/SequencerCore/Public/MVVM/Views/KeyRenderer.h
Update any invalidated data required for drawing keys
void Update ( const [FKeyBatchParameters](API\Editor\SequencerCore\MVVM\Views\FKeyBatchParameters) & Params, const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & AllottedGeometry ) const